The company should use an additional layer of encryption to secure the data from theft when moving to a CSP. Encryption is a process of transforming data into an unreadable format using a secret key. Encryption can protect the data from unauthorized access or modification during transit and at rest. Encryption can be applied at different levels, such as disk, file, or application. An additional layer of encryption can provide an extra security measure on top of the encryption provided by the CSP. Verified Reference:
https://learn.microsoft.com/en-us/partner-center/transition-seat-based-services
https://cloud.google.com/architecture/patterns-for-connecting-other-csps-with-gcp

Step by Step
Replication ensures data consistency by synchronizing copies of data across clusters. This would prevent data loss during power outages.
Caching provides faster data retrieval but does not ensure data persistence.
Containerization improves deployment consistency but does not address resilience or data integrity.
Redundancy relates to additional hardware or systems but does not guarantee up-to-date data.
High availability addresses system uptime but does not prevent data loss.

A downgrade attack likely exploited the outdated OpenSSL version, allowing the attacker to bypass secure encryption and impersonate the user. Upgrading to a secure version of OpenSSL and disabling older versions is critical. This aligns with CASP+ objective 1.5, emphasizing the importance of securing cryptographic implementations.
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Regular operating system patching is critical to mitigating vulnerabilities. When a Snort IDS rule is provided to identify a CVE, it typically means there is a known vulnerability that can be exploited. Keeping systems updated with the latest patches helps to close off these vulnerabilities and protect against exploitation.